Strict declared global library. Checks for undeclared global variables during runtime execution.
This module places the
strict function in the global
environment. The strict function allows a script to add runtime checking so
that undeclared globals cause an error to be raised. This is useful for
finding accidental use of globals when local was intended.
A global variable is considered "declared" if the script makes an assignment
to the global name (even
nil) in the file scope.
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